John g



(No Model.)

r J. G. DAWES.

BXGAVATOR AND EMBANKING MACHINE. No. 247,176.

Patented Sept. 20, 1881.

UNITED STATES PATENT OFFICE.

JOHN Gr.-DAWES,'OF FRESNO, CALIFORNIA, ASSIGNOR OF ONE-THIRD TO JOHN M. LUOE, OF SAME PLACE.

EXCAVATOR AND EMBANKING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 247,176, dated September 20, 1881.

Application filed June 6, 1881. (No model.)

To all whom it may concern Be it known that I, JOHN G. DAWES, of the city and county of Fresno, State of California, have invented an Improved Excavator and Embanking-Machine; and I hereby declare the following to be a full,clear, and exact description thereof.

My invention relates to the class of excavating and embanking machines; and it consists in a peculiarly-formed revolving cylinder provided with spiral or screw flanges in its several sections, extending from end to end inside, said flanges forming a continuous spiral flange through the cylinder, the cylinder having attached to itself and receiving the earth from a plow on one side. and being adapted to be added to and extended as the width of the excavation demands.

Referring to the accompanying drawings, Figures 1 and 2 are perspective views of my invention. Fig. 3 is a section of the cylinder.

LetA represent the draft-bar, provided with the supporting and steering wheel B, arranged, as shown, to remain on the ground when the draft-bar is raised. At the side of the draftbar, behind the steering-wheel, are the vertical standards G, to the lower ends of which is fastened the plow D, having its mold-board'toward the inside, as shown. These standards are supported by guides 6 upon the draft-bar, and slide up and down therein.

E represents a lever, pivoted to the upper end of one of the plow-standards and at its forward end to a bar or rod, F, from the draftbar, as shown. The rear end of the lever passes back to the rack-bar G, by which it is retained in place when adjusted. This lever is in convenient reach of the driver from his seat H. By this lever the inclination of the plow with the ground is adjusted.

J represents a revolving cylinder, having an axle at right angles to the plow-beam A, and having one end supported in proper boxing under the draft-bar. The construction of the cylinder is as follows: It is composed of several sections or rings, each section being constructed of plates riveted together. Each section contains screw-flanges a, secured within by an appropriate means. These flanges are so arranged in each section that when the sections are put together they will form spiral passages through the entire length of the cylinder. border to put the sections together, they are provided with projecting flanged edges b, as shown, in order to allow them to fit over one another. Thumb-screws 0 through the flanges secure them in place. The other end of the horizontal axle of the cylinder J has attached to it the diagonal draft-bar K, which passes forward and is pivoted to a cross-piece, P, extending from the forward end of the draftbar A.- The cross-piece P is provided with a number of holes, as shown, to adjust the bar K and regulate the draft. The rear end of the bar K has bolted or pivoted to it the armsf, provided with movable boxes g, fitted upon the axle of the cylinder. By this means the draft is equalized and the bar permitted to be adjusted. The boxes g are provided with setscrews for securing them, whereby the cylinder is prevented from slipping on the shaft. The drat'tbar K, for purposes hereinafter shown, has to be attached to the axle of the cylinder at different points. For this purpose the bar must be made extensible. This is done in any practicable manner.

A description of the operation of the machine will show the object of constructing the revolving cylinder in removable sections. If the plow were run alone it would-cast up the earth to one side. Then, when it returned to make a second excavation it would throw the earth into the first. To provide against this,

and to make the machine throw up the dirt on the same embankment, the first section of the revolving cylinder is placed upon its axle. The section traveling upon level ground remains horizontal. It receives the earth from the plow, and by means of its spiral passages conveys it to the other end and deposits it upon the ground in a ridgeorembankment. When the machine is returned for a second excavation, and the plow moving the width of the furrow distant from the embankment, the one section of cylinder will not be long enough to deposit the earth upon the embankment. An-

other section is therefore added. Itis sojoined to the first section that its inner flange shall continue the spiral passage of the first. The screws are inserted and the two sections firmly 5 joined. The cylinder will then have a downward inclination toward the plow, because of the first section resting in the furrow. The earth is carried up through the cylinder and deposited upon the embankment, as before. A similar operation of adding another section to the cylinder is performed upon commencing the third furrow. The extensible supplementary draft-bar or support K can be moved out along the axle of the cylinder as the sections are added to extend the cylinder. This cylinder is capable of extension to any desired 1ength-as much as twenty feet or more being used-and it will be seen that an embankment in the form of a ridge may be constructed or it may be made of considerable width by regulating the addition of the cylinders. The ditch or furrow may also be made as deep as desired by plowing through it a number of times, taking out the depth of the furrow each time. The earth is moved more easily by this apparatus than by any other form of conveyer-as, for instance, if it takes four horses to draw the plow, an additional team oi'two horses would suffice to draw the cylinder.

The cylinders may be used, independently of the plow, as a roller; and it will be seen that the plow may also be used independently for ordinary plowing.

By having the outer end of the shaft supported by two boxes, the arms from which are united and bent so as to be connected with the diagonal bar or brace K, this support is rendered rigid and is prevented from twisting or working out of place. These boxes are easily moved along the shaft, so that they will support it in close proximity to the outer ends of the sections, whether there be one or ten of the sections in use.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In an excavating and embauking machine, the revolving cylinders J, consisting of several separate sections, each section beingprovided with peripheral flanges b,for lapping over and fittingone another, and having screws 0 to secure them together, and provided, further, on their inner sides with screw-flanges a, so arranged as that the flanges in one section shall form a continuation of those in the other, to which it is joined, and form together con tinuous spiral passages through the entire cylinder, substantially as and for the purpose herein described.

2. The excavating and embanking machine herein described, consisting of the draft bar or pole A, guide-wheel B, plow D, adjusting-lever E, revolving sectional cylinder J, having spiral passages through it, and the adjustable extensible draftbar K, substantially as described.

3. The cylinder J, having spiral conveying passages within it to receive the earth turned over by the plow D, in combination with the plow-beam A, the draft-regulating bar P, and the diagonal adjustable bar K, with its arms f and boxes 9, supported by the outer end of the cylinder-shaft, substantially as herein (1vscribed.

In witness whereof I have hereunto set my hand.

JOHN G. DAWES.

\Vitnesses:

Orro FROELIOH, 'l. MONROE HUGHES. 

